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 30848-b1463d63da) Lines: 1881 2002 94.0 % Date: 2026-04-30 09:27:33 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	126
divRq	301
mulqq	1127
addRq	1302
mulRq	2387
divTp	3674
addsub_polmod	7210
ser_normalize	7658
quad_polmod_conj	18669
quad_polmod_norm	18669
div_scal_ser	19096
div_rfrac_scal	32435
div_polmod_same	38150
sqr_ser_part	113907
mul_gen_rfrac	161376
inv_polmod	192397
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	260657
mul_ser_scal	323974
div_intmod_same	341561
gconj	390611
add_ser_scal	417285
sqr_polmod	426119
div_ser	875766
sub_intmod_same	1017835
div_scal_rfrac	1052294
div_rfrac	1187510
divpT	1204910
div_ser_scal	1543591
gdivgunextu	1583803
Qdivis	1762585
mul_polmod	2674945
divRc	2918787
mulcxmI	2985928
mul_intmod_same	2987776
add_rfrac	3017298
gsubsg	3270041
mul_polmod_scal	3284724
add_intmod_same	3411659
ser_add	4094177
addQp	4763012
mulTp	4985898
mulcxpowIs	5564194
quad_polmod_mul	5861861
pol2ser	6378562
div_T_scal	7295836
mul_self_scal	7663741
mul_rfrac	7910292
_serprec	8187556
mul_polmod_same	8647444
add_rfrac_scal	8823993
rfrac_denom_mul_scal	9852099
mul_rfrac_scal	10435532
mulcIR	11907125
divpp	13210645
gdivgs	13378369
addsub_polmod_scal	13598740
addsub_frac_i	14260439
div_scal_pol	14531955
setfrac	15159095
div_scal_T	15557271
mulcxI	15655355
mulpp	17505245
addsub_pp	19972936
divcR	23431339
mkpadic_mod	24593027
add_scal	29438869
conj_i	31556648
mulrfrac	38071999
ginv	38493560
gred_rfrac2	39476029
addsub_frac	40954993
Leading_is_neg	57629514
gred_rfrac_simple	57633715
gdivgu	61801405
utoi_sign	65172838
Qdivii	143111125
gmul2n	150458059
Qdiviu	151448041
transtype	154223893
mul_scal	198406242
divrunextu	213568453
gmulsg	244387166
gaddsg	270816231
mulcc	281731864
gmulug	283938450
addRc	310813288
mulRc	355346215
gdiv	455363387
gsqr	1344023178
gsub	2905355769
gadd	6259376632
gmul	8962381370

Generated by: LCOV version 1.16