What do .c and .h file extensions mean to C? – Stack Overflow

March 24, 2026

The .h files are used to expose the API of a program to either other part of that program or other program is you are creating a library. For example, the program PizzaDelivery could have 1 .c file with the main program, and 1 .c file with utility functions.

https://stackoverflow.com/questions/1695224/what-do-c-and-h-file-extensions-mean-to-c

What do .c and .h file extensions mean to C? – Stack Overflow <body> <h1> Array ( [0] => qhat do .c and .h file extensions mean to c? – stack overflow [1] => ahat do .c and .h file extensions mean to c? – stack overflow [2] => shat do .c and .h file extensions mean to c? – stack overflow [3] => ehat do .c and .h file extensions mean to c? – stack overflow [4] => 3hat do .c and .h file extensions mean to c? – stack overflow [5] => 2hat do .c and .h file extensions mean to c? – stack overflow [6] => wgat do .c and .h file extensions mean to c? – stack overflow [7] => wbat do .c and .h file extensions mean to c? – stack overflow [8] => wnat do .c and .h file extensions mean to c? – stack overflow [9] => wjat do .c and .h file extensions mean to c? – stack overflow [10] => wuat do .c and .h file extensions mean to c? – stack overflow [11] => wyat do .c and .h file extensions mean to c? – stack overflow [12] => whzt do .c and .h file extensions mean to c? – stack overflow [13] => whst do .c and .h file extensions mean to c? – stack overflow [14] => whwt do .c and .h file extensions mean to c? – stack overflow [15] => whqt do .c and .h file extensions mean to c? – stack overflow [16] => whar do .c and .h file extensions mean to c? – stack overflow [17] => whaf do .c and .h file extensions mean to c? – stack overflow [18] => whag do .c and .h file extensions mean to c? – stack overflow [19] => whay do .c and .h file extensions mean to c? – stack overflow [20] => wha6 do .c and .h file extensions mean to c? – stack overflow [21] => wha5 do .c and .h file extensions mean to c? – stack overflow [22] => what so .c and .h file extensions mean to c? – stack overflow [23] => what xo .c and .h file extensions mean to c? – stack overflow [24] => what co .c and .h file extensions mean to c? – stack overflow [25] => what fo .c and .h file extensions mean to c? – stack overflow [26] => what ro .c and .h file extensions mean to c? – stack overflow [27] => what eo .c and .h file extensions mean to c? – stack overflow [28] => what di .c and .h file extensions mean to c? – stack overflow [29] => what dk .c and .h file extensions mean to c? – stack overflow [30] => what dl .c and .h file extensions mean to c? – stack overflow [31] => what dp .c and .h file extensions mean to c? – stack overflow [32] => what d0 .c and .h file extensions mean to c? – stack overflow [33] => what d9 .c and .h file extensions mean to c? – stack overflow [34] => what do ,c and .h file extensions mean to c? – stack overflow [35] => what do lc and .h file extensions mean to c? – stack overflow [36] => what do ;c and .h file extensions mean to c? – stack overflow [37] => what do /c and .h file extensions mean to c? – stack overflow [38] => what do .x and .h file extensions mean to c? – stack overflow [39] => what do .v and .h file extensions mean to c? – stack overflow [40] => what do .f and .h file extensions mean to c? – stack overflow [41] => what do .d and .h file extensions mean to c? – stack overflow [42] => what do .c znd .h file extensions mean to c? – stack overflow [43] => what do .c snd .h file extensions mean to c? – stack overflow [44] => what do .c wnd .h file extensions mean to c? – stack overflow [45] => what do .c qnd .h file extensions mean to c? – stack overflow [46] => what do .c abd .h file extensions mean to c? – stack overflow [47] => what do .c amd .h file extensions mean to c? – stack overflow [48] => what do .c ajd .h file extensions mean to c? – stack overflow [49] => what do .c ahd .h file extensions mean to c? – stack overflow [50] => what do .c ans .h file extensions mean to c? – stack overflow [51] => what do .c anx .h file extensions mean to c? – stack overflow [52] => what do .c anc .h file extensions mean to c? – stack overflow [53] => what do .c anf .h file extensions mean to c? – stack overflow [54] => what do .c anr .h file extensions mean to c? – stack overflow [55] => what do .c ane .h file extensions mean to c? – stack overflow [56] => what do .c and ,h file extensions mean to c? – stack overflow [57] => what do .c and lh file extensions mean to c? – stack overflow [58] => what do .c and ;h file extensions mean to c? – stack overflow [59] => what do .c and /h file extensions mean to c? – stack overflow [60] => what do .c and .g file extensions mean to c? – stack overflow [61] => what do .c and .b file extensions mean to c? – stack overflow [62] => what do .c and .n file extensions mean to c? – stack overflow [63] => what do .c and .j file extensions mean to c? – stack overflow [64] => what do .c and .u file extensions mean to c? – stack overflow [65] => what do .c and .y file extensions mean to c? – stack overflow [66] => what do .c and .h dile extensions mean to c? – stack overflow [67] => what do .c and .h cile extensions mean to c? – stack overflow [68] => what do .c and .h vile extensions mean to c? – stack overflow [69] => what do .c and .h gile extensions mean to c? – stack overflow [70] => what do .c and .h tile extensions mean to c? – stack overflow [71] => what do .c and .h rile extensions mean to c? – stack overflow [72] => what do .c and .h fule extensions mean to c? – stack overflow [73] => what do .c and .h fjle extensions mean to c? – stack overflow [74] => what do .c and .h fkle extensions mean to c? – stack overflow [75] => what do .c and .h fole extensions mean to c? – stack overflow [76] => what do .c and .h f9le extensions mean to c? – stack overflow [77] => what do .c and .h f8le extensions mean to c? – stack overflow [78] => what do .c and .h fike extensions mean to c? – stack overflow [79] => what do .c and .h fipe extensions mean to c? – stack overflow [80] => what do .c and .h fioe extensions mean to c? – stack overflow [81] => what do .c and .h filw extensions mean to c? – stack overflow [82] => what do .c and .h fils extensions mean to c? – stack overflow [83] => what do .c and .h fild extensions mean to c? – stack overflow [84] => what do .c and .h filr extensions mean to c? – stack overflow [85] => what do .c and .h fil4 extensions mean to c? – stack overflow [86] => what do .c and .h fil3 extensions mean to c? – stack overflow [87] => what do .c and .h file wxtensions mean to c? – stack overflow [88] => what do .c and .h file sxtensions mean to c? – stack overflow [89] => what do .c and .h file dxtensions mean to c? – stack overflow [90] => what do .c and .h file rxtensions mean to c? – stack overflow [91] => what do .c and .h file 4xtensions mean to c? – stack overflow [92] => what do .c and .h file 3xtensions mean to c? – stack overflow [93] => what do .c and .h file eztensions mean to c? – stack overflow [94] => what do .c and .h file ectensions mean to c? – stack overflow [95] => what do .c and .h file edtensions mean to c? – stack overflow [96] => what do .c and .h file estensions mean to c? – stack overflow [97] => what do .c and .h file exrensions mean to c? – stack overflow [98] => what do .c and .h file exfensions mean to c? – stack overflow [99] => what do .c and .h file exgensions mean to c? – stack overflow [100] => what do .c and .h file exyensions mean to c? – stack overflow [101] => what do .c and .h file ex6ensions mean to c? – stack overflow [102] => what do .c and .h file ex5ensions mean to c? – stack overflow [103] => what do .c and .h file extwnsions mean to c? – stack overflow [104] => what do .c and .h file extsnsions mean to c? – stack overflow [105] => what do .c and .h file extdnsions mean to c? – stack overflow [106] => what do .c and .h file extrnsions mean to c? – stack overflow [107] => what do .c and .h file ext4nsions mean to c? – stack overflow [108] => what do .c and .h file ext3nsions mean to c? – stack overflow [109] => what do .c and .h file extebsions mean to c? – stack overflow [110] => what do .c and .h file extemsions mean to c? – stack overflow [111] => what do .c and .h file extejsions mean to c? – stack overflow [112] => what do .c and .h file extehsions mean to c? – stack overflow [113] => what do .c and .h file extenaions mean to c? – stack overflow [114] => what do .c and .h file extenzions mean to c? – stack overflow [115] => what do .c and .h file extenxions mean to c? – stack overflow [116] => what do .c and .h file extendions mean to c? – stack overflow [117] => what do .c and .h file exteneions mean to c? – stack overflow [118] => what do .c and .h file extenwions mean to c? – stack overflow [119] => what do .c and .h file extensuons mean to c? – stack overflow [120] => what do .c and .h file extensjons mean to c? – stack overflow [121] => what do .c and .h file extenskons mean to c? – stack overflow [122] => what do .c and .h file extensoons mean to c? – stack overflow [123] => what do .c and .h file extens9ons mean to c? – stack overflow [124] => what do .c and .h file extens8ons mean to c? – stack overflow [125] => what do .c and .h file extensiins mean to c? – stack overflow [126] => what do .c and .h file extensikns mean to c? – stack overflow [127] => what do .c and .h file extensilns mean to c? – stack overflow [128] => what do .c and .h file extensipns mean to c? – stack overflow [129] => what do .c and .h file extensi0ns mean to c? – stack overflow [130] => what do .c and .h file extensi9ns mean to c? – stack overflow [131] => what do .c and .h file extensiobs mean to c? – stack overflow [132] => what do .c and .h file extensioms mean to c? – stack overflow [133] => what do .c and .h file extensiojs mean to c? – stack overflow [134] => what do .c and .h file extensiohs mean to c? – stack overflow [135] => what do .c and .h file extensiona mean to c? – stack overflow [136] => what do .c and .h file extensionz mean to c? – stack overflow [137] => what do .c and .h file extensionx mean to c? – stack overflow [138] => what do .c and .h file extensiond mean to c? – stack overflow [139] => what do .c and .h file extensione mean to c? – stack overflow [140] => what do .c and .h file extensionw mean to c? – stack overflow [141] => what do .c and .h file extensions nean to c? – stack overflow [142] => what do .c and .h file extensions kean to c? – stack overflow [143] => what do .c and .h file extensions jean to c? – stack overflow [144] => what do .c and .h file extensions mwan to c? – stack overflow [145] => what do .c and .h file extensions msan to c? – stack overflow [146] => what do .c and .h file extensions mdan to c? – stack overflow [147] => what do .c and .h file extensions mran to c? – stack overflow [148] => what do .c and .h file extensions m4an to c? – stack overflow [149] => what do .c and .h file extensions m3an to c? – stack overflow [150] => what do .c and .h file extensions mezn to c? – stack overflow [151] => what do .c and .h file extensions mesn to c? – stack overflow [152] => what do .c and .h file extensions mewn to c? – stack overflow [153] => what do .c and .h file extensions meqn to c? – stack overflow [154] => what do .c and .h file extensions meab to c? – stack overflow [155] => what do .c and .h file extensions meam to c? – stack overflow [156] => what do .c and .h file extensions meaj to c? – stack overflow [157] => what do .c and .h file extensions meah to c? – stack overflow [158] => what do .c and .h file extensions mean ro c? – stack overflow [159] => what do .c and .h file extensions mean fo c? – stack overflow [160] => what do .c and .h file extensions mean go c? – stack overflow [161] => what do .c and .h file extensions mean yo c? – stack overflow [162] => what do .c and .h file extensions mean 6o c? – stack overflow [163] => what do .c and .h file extensions mean 5o c? – stack overflow [164] => what do .c and .h file extensions mean ti c? – stack overflow [165] => what do .c and .h file extensions mean tk c? – stack overflow [166] => what do .c and .h file extensions mean tl c? – stack overflow [167] => what do .c and .h file extensions mean tp c? – stack overflow [168] => what do .c and .h file extensions mean t0 c? – stack overflow [169] => what do .c and .h file extensions mean t9 c? – stack overflow [170] => what do .c and .h file extensions mean to x? – stack overflow [171] => what do .c and .h file extensions mean to v? – stack overflow [172] => what do .c and .h file extensions mean to f? – stack overflow [173] => what do .c and .h file extensions mean to d? – stack overflow [174] => what do .c and .h file extensions mean to c? ᰫ stack overflow [175] => what do .c and .h file extensions mean to c? &#u211; stack overflow [176] => what do .c and .h file extensions mean to c? &#i211; stack overflow [177] => what do .c and .h file extensions mean to c? ⏻ stack overflow [178] => what do .c and .h file extensions mean to c? ᾯ stack overflow [179] => what do .c and .h file extensions mean to c? &#8q11; stack overflow [180] => what do .c and .h file extensions mean to c? &#8w11; stack overflow [181] => what do .c and .h file extensions mean to c? ⁷ stack overflow [182] => what do .c and .h file extensions mean to c? ” stack overflow [183] => what do .c and .h file extensions mean to c? &#82q1; stack overflow [184] => what do .c and .h file extensions mean to c? — stack overflow [185] => what do .c and .h file extensions mean to c? &#821q; stack overflow [186] => what do .c and .h file extensions mean to c? – atack overflow [187] => what do .c and .h file extensions mean to c? – ztack overflow [188] => what do .c and .h file extensions mean to c? – xtack overflow [189] => what do .c and .h file extensions mean to c? – dtack overflow [190] => what do .c and .h file extensions mean to c? – etack overflow [191] => what do .c and .h file extensions mean to c? – wtack overflow [192] => what do .c and .h file extensions mean to c? – srack overflow [193] => what do .c and .h file extensions mean to c? – sfack overflow [194] => what do .c and .h file extensions mean to c? – sgack overflow [195] => what do .c and .h file extensions mean to c? – syack overflow [196] => what do .c and .h file extensions mean to c? – s6ack overflow [197] => what do .c and .h file extensions mean to c? – s5ack overflow [198] => what do .c and .h file extensions mean to c? – stzck overflow [199] => what do .c and .h file extensions mean to c? – stsck overflow [200] => what do .c and .h file extensions mean to c? – stwck overflow [201] => what do .c and .h file extensions mean to c? – stqck overflow [202] => what do .c and .h file extensions mean to c? – staxk overflow [203] => what do .c and .h file extensions mean to c? – stavk overflow [204] => what do .c and .h file extensions mean to c? – stafk overflow [205] => what do .c and .h file extensions mean to c? – stadk overflow [206] => what do .c and .h file extensions mean to c? – stacj overflow [207] => what do .c and .h file extensions mean to c? – stacm overflow [208] => what do .c and .h file extensions mean to c? – stacl overflow [209] => what do .c and .h file extensions mean to c? – staco overflow [210] => what do .c and .h file extensions mean to c? – staci overflow [211] => what do .c and .h file extensions mean to c? – stack iverflow [212] => what do .c and .h file extensions mean to c? – stack kverflow [213] => what do .c and .h file extensions mean to c? – stack lverflow [214] => what do .c and .h file extensions mean to c? – stack pverflow [215] => what do .c and .h file extensions mean to c? – stack 0verflow [216] => what do .c and .h file extensions mean to c? – stack 9verflow [217] => what do .c and .h file extensions mean to c? – stack ocerflow [218] => what do .c and .h file extensions mean to c? – stack oberflow [219] => what do .c and .h file extensions mean to c? – stack ogerflow [220] => what do .c and .h file extensions mean to c? – stack oferflow [221] => what do .c and .h file extensions mean to c? – stack ovwrflow [222] => what do .c and .h file extensions mean to c? – stack ovsrflow [223] => what do .c and .h file extensions mean to c? – stack ovdrflow [224] => what do .c and .h file extensions mean to c? – stack ovrrflow [225] => what do .c and .h file extensions mean to c? – stack ov4rflow [226] => what do .c and .h file extensions mean to c? – stack ov3rflow [227] => what do .c and .h file extensions mean to c? – stack oveeflow [228] => what do .c and .h file extensions mean to c? – stack ovedflow [229] => what do .c and .h file extensions mean to c? – stack ovefflow [230] => what do .c and .h file extensions mean to c? – stack ovetflow [231] => what do .c and .h file extensions mean to c? – stack ove5flow [232] => what do .c and .h file extensions mean to c? – stack ove4flow [233] => what do .c and .h file extensions mean to c? – stack overdlow [234] => what do .c and .h file extensions mean to c? – stack overclow [235] => what do .c and .h file extensions mean to c? – stack overvlow [236] => what do .c and .h file extensions mean to c? – stack overglow [237] => what do .c and .h file extensions mean to c? – stack overtlow [238] => what do .c and .h file extensions mean to c? – stack overrlow [239] => what do .c and .h file extensions mean to c? – stack overfkow [240] => what do .c and .h file extensions mean to c? – stack overfpow [241] => what do .c and .h file extensions mean to c? – stack overfoow [242] => what do .c and .h file extensions mean to c? – stack overfliw [243] => what do .c and .h file extensions mean to c? – stack overflkw [244] => what do .c and .h file extensions mean to c? – stack overfllw [245] => what do .c and .h file extensions mean to c? – stack overflpw [246] => what do .c and .h file extensions mean to c? – stack overfl0w [247] => what do .c and .h file extensions mean to c? – stack overfl9w [248] => what do .c and .h file extensions mean to c? – stack overfloq [249] => what do .c and .h file extensions mean to c? – stack overfloa [250] => what do .c and .h file extensions mean to c? – stack overflos [251] => what do .c and .h file extensions mean to c? – stack overfloe [252] => what do .c and .h file extensions mean to c? – stack overflo3 [253] => what do .c and .h file extensions mean to c? – stack overflo2 ) </h1> </body>