33 lines
797 B
C
33 lines
797 B
C
#ifndef COSMOPOLITAN_LIBC_CALLS_HEFTY_MKVARARGV_H_
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#define COSMOPOLITAN_LIBC_CALLS_HEFTY_MKVARARGV_H_
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#include "libc/alg/arraylist2.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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/**
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* Turns variadic program arguments into array.
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*
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* This is a support function for execl(), execlp(), spawnl(), etc.
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*
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* @note type signatures are fubar for these functions
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*/
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forceinline void *mkvarargv(const char *arg1, va_list va) {
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size_t i, n;
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const char **p, *arg;
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i = 0;
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n = 0;
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p = NULL;
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arg = arg1;
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do {
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if (APPEND(&p, &i, &n, &arg) == -1) {
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free(p);
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return NULL;
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}
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} while ((arg = va_arg(va, const char *)));
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return p;
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}
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_HEFTY_MKVARARGV_H_ */
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