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 30735-65f72320ad) Lines: 1881 2002 94.0 % Date: 2026-03-11 09:24:10 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57627946
Q_to_Fp	226838
Qdivii	142888114
Qdivis	1592572
Qdiviu	149759964
Zp_nosquare_m1	42
_serprec	7185100
addQp	4763044
addRc	307881995
addRq	1302
addTp	7
add_intmod_same	3341066
add_rfrac	3017228
add_rfrac_scal	8823769
add_scal	29392003
add_ser_scal	414478
addqf	77
addsub_frac	40596576
addsub_frac_i	14120067
addsub_polmod	7210
addsub_polmod_scal	13457865
addsub_pp	19974939
conj_i	31497579
conjvec	84
divRc	2286380
divRq	301
divTp	3674
div_T_scal	7092825
div_intmod_same	341549
div_polmod_same	37016
div_rfrac	1187496
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557229
div_scal_pol	14531927
div_scal_rfrac	1052280
div_scal_ser	19096
div_ser	774266
div_ser_scal	1343391
divcR	23356198
divfq	42
divpT	1204910
divpp	13213403
divqf	63
divrunextu	213787323
fix_rfrac	206780
gadd	6183312713
gaddsg	270746057
gconj	390135
gdiv	439919793
gdivgs	12993176
gdivgu	60482016
gdivgunextu	1583803
ginv	36577970
gmul	8899787468
gmul2n	143588768
gmulsg	240958959
gmulug	283683119
gred_rfrac2	39473628
gred_rfrac_simple	57631048
gsqr	1337422896
gsub	2890106674
gsubsg	3235112
inv_polmod	189773
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24595455
mulRc	354447021
mulRq	2387
mulTp	4985920
mul_gen_rfrac	161376
mul_intmod_same	2818599
mul_polmod	2674945
mul_polmod_same	8532791
mul_polmod_scal	3219554
mul_rfrac	7910194
mul_rfrac_scal	10435434
mul_scal	197771698
mul_self_scal	7646200
mul_ser_scal	321174
mulcIR	11646656
mulcc	279006531
mulcxI	15636464
mulcxmI	2985921
mulcxpowIs	5564052
mulpp	17505722
mulqf	28
mulqq	1127
mulrfrac	37740817
pol2ser	5638655
quad_polmod_conj	18403
quad_polmod_mul	5860237
quad_polmod_norm	18403
rfrac_denom_mul_scal	9851840
ser_add	3592949
ser_normalize	7658
setfrac	14998456
sqr_polmod	419392
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1017828
transtype	154216025
utoi_sign	64608235
warn_coercion	126

Generated by: LCOV version 1.16