Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30673-b6380924e9) Lines: 1880 2002 93.9 % Date: 2026-02-08 09:23:25 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57790160
Q_to_Fp	226838
Qdivii	141935575
Qdivis	1592285
Qdiviu	148812645
Zp_nosquare_m1	42
_serprec	7185086
addQp	4762969
addRc	307894964
addRq	1288
addTp	7
add_intmod_same	3338875
add_rfrac	3017228
add_rfrac_scal	8812213
add_scal	42826843
add_ser_scal	414436
addqf	77
addsub_frac	40599038
addsub_frac_i	14120867
addsub_polmod	7203
addsub_polmod_scal	13456523
addsub_pp	19974292
conj_i	31492400
conjvec	84
divRc	2286211
divRq	301
divTp	3674
div_T_scal	7128748
div_intmod_same	341492
div_polmod_same	37016
div_rfrac	1187237
div_rfrac_pol	262365
div_rfrac_scal	32139
div_scal_T	9266449
div_scal_pol	9258206
div_scal_rfrac	37767
div_scal_ser	19096
div_ser	774266
div_ser_scal	1343391
divcR	23353055
divfq	42
divpT	1204910
divpp	13212270
divqf	63
divrunextu	213830929
fix_rfrac	206780
gadd	6148540586
gaddsg	270740441
gconj	390135
gdiv	439097256
gdivgs	13001733
gdivgu	60480666
gdivgunextu	1583803
ginv	36548723
gmul	8694084204
gmul2n	143723330
gmulsg	239724918
gmulug	283683119
gred_rfrac2	44823163
gred_rfrac_simple	57794249
gsqr	1184030053
gsub	2887674012
gsubsg	3235143
inv_polmod	189698
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24593925
mulRc	354474546
mulRq	2324
mulTp	4985897
mul_gen_rfrac	161432
mul_intmod_same	2788752
mul_polmod	2674945
mul_polmod_same	8529774
mul_polmod_scal	3238992
mul_rfrac	7910299
mul_rfrac_scal	10454093
mul_scal	154346219
mul_self_scal	7646229
mul_ser_scal	321174
mulcIR	11645419
mulcc	279024358
mulcxI	15629207
mulcxmI	2985886
mulcxpowIs	5563279
mulpp	17505431
mulqf	28
mulqq	1127
mulrfrac	37742787
pol2ser	5638655
quad_polmod_conj	18403
quad_polmod_mul	5860209
quad_polmod_norm	18403
rfrac_denom_mul_scal	9959022
ser_add	3592942
ser_normalize	7658
setfrac	14999669
sqr_polmod	419385
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1021769
transtype	154397901
utoi_sign	64652031
warn_coercion	112

Generated by: LCOV version 1.16